public async Task<EditablePlaylistViewModel> GetEditablePlaylistAsync(PlaylistViewModel playlistViewModel)
{
// Assume new playlist
var editablePlaylist = new EditablePlaylistViewModel(
await this.GetUniquePlaylistNameAsync(ResourceUtils.GetString("Language_New_Playlist")),
PlaylistType.Static
);
// Not a new playlist
if (playlistViewModel != null)
{
editablePlaylist.Path = playlistViewModel.Path;
editablePlaylist.PlaylistName = playlistViewModel.Name;
editablePlaylist.Type = playlistViewModel.Type;
if (playlistViewModel.Type.Equals(PlaylistType.Smart))
{
await Task.Run(() =>
{
var decoder = new SmartPlaylistDecoder();
DecodeSmartPlaylistResult result = decoder.DecodePlaylist(playlistViewModel.Path);
editablePlaylist.Limit = new SmartPlaylistLimitViewModel(result.Limit.Type, result.Limit.Value);
editablePlaylist.Limit.IsEnabled = result.Limit.Value > 0;
editablePlaylist.SelectedLimitType = editablePlaylist.LimitTypes.Where(x => x.Type.Equals(result.Limit.Type)).FirstOrDefault();
editablePlaylist.MatchAnyRule = result.Match.Equals(SmartPlaylistDecoder.MatchAny) ? true : false;
var ruleViewModels = new ObservableCollection<SmartPlaylistRuleViewModel>();
foreach (SmartPlaylistRule rule in result.Rules)
{
var ruleViewModel = new SmartPlaylistRuleViewModel();
ruleViewModel.SelectedField = ruleViewModel.Fields.Where(x => x.Name.Equals(rule.Field)).FirstOrDefault();
// If a invalid field was provided in the xml file, just take the first field.
if (ruleViewModel.SelectedField == null)
{
ruleViewModel.SelectedField = ruleViewModel.Fields.First();
}
ruleViewModel.SelectedOperator = ruleViewModel.Operators.Where(x => x.Name.Equals(rule.Operator)).FirstOrDefault();
// If a invalid operator was provided in the xml file, just take the first operator.
if (ruleViewModel.SelectedOperator == null)
{
ruleViewModel.SelectedOperator = ruleViewModel.Operators.First();
}
ruleViewModel.Value = rule.Value;
ruleViewModels.Add(ruleViewModel);
}
editablePlaylist.Rules = ruleViewModels;
});
}
}
return editablePlaylist;
}
private async Task<EditPlaylistResult> EditStaticPlaylistAsync(EditablePlaylistViewModel editablePlaylistViewModel)
{
if (!System.IO.File.Exists(editablePlaylistViewModel.Path))
{
LogClient.Error("Error while renaming playlist. The playlist '{0}' could not be found", editablePlaylistViewModel.Path);
return EditPlaylistResult.Error;
}
string sanitizedNewPlaylistName = this.SanitizePlaylistFilename(editablePlaylistViewModel.PlaylistName);
string newFilename = this.CreatePlaylistFilePath(sanitizedNewPlaylistName, PlaylistType.Static);
if (System.IO.File.Exists(newFilename))
{
return EditPlaylistResult.Duplicate;
}
EditPlaylistResult result = EditPlaylistResult.Success;
await Task.Run(() =>
{
try
{
System.IO.File.Move(editablePlaylistViewModel.Path, newFilename);
}
catch (Exception ex)
{
LogClient.Error($"Error while editing static playlist '{editablePlaylistViewModel.Path}'. Exception: {ex.Message}");
result = EditPlaylistResult.Error;
}
});
return result;
}
private async Task<PlaylistViewModel> CreateNewStaticPlaylistAsync(EditablePlaylistViewModel editablePlaylist)
{
if (editablePlaylist == null)
{
LogClient.Error($"{nameof(editablePlaylist)} is null");
return null;
}
if (string.IsNullOrEmpty(editablePlaylist.Path))
{
LogClient.Error($"{nameof(editablePlaylist.Path)} is null or empty");
return null;
}
try
{
await Task.Run(() =>
{
// Close() prevents file in use issues
System.IO.File.Create(editablePlaylist.Path).Close();
});
}
catch (Exception ex)
{
LogClient.Error($"Could not create playlist '{editablePlaylist.PlaylistName}' with filename '{editablePlaylist.Path}'. Exception: {ex.Message}");
return null;
}
return new PlaylistViewModel(editablePlaylist.PlaylistName, editablePlaylist.Path, PlaylistType.Static);
}
private async Task<PlaylistViewModel> UpdateSmartPlaylistAsync(EditablePlaylistViewModel editablePlaylist)
{
if (editablePlaylist == null)
{
LogClient.Error($"{nameof(editablePlaylist)} is null");
return null;
}
if (string.IsNullOrEmpty(editablePlaylist.Path))
{
LogClient.Error($"{nameof(editablePlaylist.Path)} is null or empty");
return null;
}
// Delete the old smart playlist file
await Task.Run(() =>
{
if (System.IO.File.Exists(editablePlaylist.Path))
{
System.IO.File.Delete(editablePlaylist.Path);
}
});
// Update the path of the smart playlist to create
string sanitizedPlaylistName = this.SanitizePlaylistFilename(editablePlaylist.PlaylistName);
editablePlaylist.Path = this.CreatePlaylistFilePath(sanitizedPlaylistName, editablePlaylist.Type);
// Create a new smart playlist file
return await this.CreateNewSmartPlaylistAsync(editablePlaylist);
}
private async Task<PlaylistViewModel> CreateNewSmartPlaylistAsync(EditablePlaylistViewModel editablePlaylist)
{
if (editablePlaylist == null)
{
LogClient.Error($"{nameof(editablePlaylist)} is null");
return null;
}
if (string.IsNullOrEmpty(editablePlaylist.Path))
{
LogClient.Error($"{nameof(editablePlaylist.Path)} is null or empty");
return null;
}
try
{
await Task.Run(() =>
{
var decoder = new SmartPlaylistDecoder();
XDocument smartPlaylistDocument = decoder.EncodeSmartPlaylist(
editablePlaylist.PlaylistName,
editablePlaylist.MatchAnyRule,
editablePlaylist.Limit.ToSmartPlaylistLimit(),
editablePlaylist.Rules.Select(x => x.ToSmartPlaylistRule()).ToList());
smartPlaylistDocument.Save(editablePlaylist.Path);
});
}
catch (Exception ex)
{
LogClient.Error($"Could not create playlist '{editablePlaylist.PlaylistName}' with filename '{editablePlaylist.Path}'. Exception: {ex.Message}");
return null;
}
return new PlaylistViewModel(editablePlaylist.PlaylistName, editablePlaylist.Path, PlaylistType.Smart);
}
private async Task CreateNewPlaylistAsync(EditablePlaylistViewModel editablePlaylist)
{
CreateNewPlaylistResult result = await this.playlistService.CreateNewPlaylistAsync(editablePlaylist);
switch (result)
{
case CreateNewPlaylistResult.Duplicate:
this.dialogService.ShowNotification(
0xe711,
16,
ResourceUtils.GetString("Language_Already_Exists"),
ResourceUtils.GetString("Language_Already_Playlist_With_That_Name").Replace("{playlistname}", editablePlaylist.PlaylistName),
ResourceUtils.GetString("Language_Ok"),
false,
string.Empty);
break;
case CreateNewPlaylistResult.Error:
this.dialogService.ShowNotification(
0xe711,
16,
ResourceUtils.GetString("Language_Error"),
ResourceUtils.GetString("Language_Error_Adding_Playlist"),
ResourceUtils.GetString("Language_Ok"),
true,
ResourceUtils.GetString("Language_Log_File"));
break;
case CreateNewPlaylistResult.Blank:
this.dialogService.ShowNotification(
0xe711,
16,
ResourceUtils.GetString("Language_Error"),
ResourceUtils.GetString("Language_Provide_Playlist_Name"),
ResourceUtils.GetString("Language_Ok"),
false,
string.Empty);
break;
default:
// Never happens
break;
}
}
public async Task<EditPlaylistResult> EditPlaylistAsync(EditablePlaylistViewModel editablePlaylistViewModel)
{
if (editablePlaylistViewModel == null)
{
LogClient.Error($"{nameof(editablePlaylistViewModel)} is null");
return EditPlaylistResult.Error;
}
if (string.IsNullOrWhiteSpace(editablePlaylistViewModel.Path))
{
LogClient.Error($"{nameof(editablePlaylistViewModel.Path)} is null or empty");
return EditPlaylistResult.Error;
}
if (string.IsNullOrWhiteSpace(editablePlaylistViewModel.PlaylistName))
{
LogClient.Error($"{nameof(editablePlaylistViewModel.PlaylistName)} is empty");
return EditPlaylistResult.Blank;
}
this.watcher.Suspend(); // Stop watching the playlist folder
EditPlaylistResult result = EditPlaylistResult.Error;
if (editablePlaylistViewModel.Type.Equals(PlaylistType.Static))
{
result = await this.EditStaticPlaylistAsync(editablePlaylistViewModel);
}
else if (editablePlaylistViewModel.Type.Equals(PlaylistType.Smart))
{
result = await this.EditSmartPlaylistAsync(editablePlaylistViewModel);
}
this.watcher.Resume(); // Start watching the playlist folder
if (result == EditPlaylistResult.Success)
{
this.PlaylistFolderChanged(this, new EventArgs());
}
return result;
}
private async Task <EditPlaylistResult> EditSmartPlaylistAsync(EditablePlaylistViewModel editablePlaylistViewModel)
{
if (!System.IO.File.Exists(editablePlaylistViewModel.Path))
{
LogClient.Error("Error while renaming playlist. The playlist '{0}' could not be found", editablePlaylistViewModel.Path);
return(EditPlaylistResult.Error);
}
IList <PlaylistViewModel> existingSmartPlaylists = await this.GetSmartPlaylistsAsync();
string oldSmartPlaylistName = this.GetSmartPlaylistName(editablePlaylistViewModel.Path);
bool isEditingSamePlaylist = oldSmartPlaylistName.ToLower().Equals(editablePlaylistViewModel.PlaylistName.ToLower());
bool playlistNameIsAlreadyUsed = existingSmartPlaylists.Any(x => x.Name.ToLower().Equals(editablePlaylistViewModel.PlaylistName.ToLower()));
if (!isEditingSamePlaylist & playlistNameIsAlreadyUsed)
{
return(EditPlaylistResult.Duplicate);
}
EditPlaylistResult result = EditPlaylistResult.Success;
try
{
PlaylistViewModel playlistViewModel = await this.UpdateSmartPlaylistAsync(editablePlaylistViewModel);
if (playlistViewModel == null)
{
LogClient.Error($"Error while editing smart playlist '{editablePlaylistViewModel.Path}'. {nameof(playlistViewModel)} is null");
result = EditPlaylistResult.Error;
}
}
catch (Exception ex)
{
LogClient.Error($"Error while editing smart playlist '{editablePlaylistViewModel.Path}'. Exception: {ex.Message}");
result = EditPlaylistResult.Error;
}
return(result);
}
public async Task <CreateNewPlaylistResult> CreateNewPlaylistAsync(EditablePlaylistViewModel editablePlaylist)
{
if (string.IsNullOrWhiteSpace(editablePlaylist.PlaylistName))
{
return(CreateNewPlaylistResult.Blank);
}
string sanitizedPlaylistName = this.SanitizePlaylistFilename(editablePlaylist.PlaylistName);
editablePlaylist.Path = this.CreatePlaylistFilePath(sanitizedPlaylistName, editablePlaylist.Type);
if (System.IO.File.Exists(editablePlaylist.Path))
{
return(CreateNewPlaylistResult.Duplicate);
}
this.watcher.Suspend(); // Stop watching the playlist folder
PlaylistViewModel playlistViewModel = null;
if (editablePlaylist.Type.Equals(PlaylistType.Static))
{
playlistViewModel = await this.CreateNewStaticPlaylistAsync(editablePlaylist);
}
else if (editablePlaylist.Type.Equals(PlaylistType.Smart))
{
playlistViewModel = await this.CreateNewSmartPlaylistAsync(editablePlaylist);
}
this.watcher.Resume(); // Start watching the playlist folder
if (playlistViewModel == null)
{
return(CreateNewPlaylistResult.Error);
}
this.PlaylistFolderChanged(this, new EventArgs());
return(CreateNewPlaylistResult.Success);
}
